1 /* { dg-do run { target { pcc_bitfield_type_matters || default_packed } } } */
2 /* { dg-options "" } */
3 
4 /* Check bitfields and non-bitfields are aligned & sized similarly.
5 
6    Copyright (C) 2002 Free Software Foundation Inc
7    Contributed by Nathan Sidwell <nathan@codesourcery.com>
8 */
9 
10 #include <limits.h>
11 #include <stdio.h>
12 
13 static int fail;
14 
15 #define CHECK1(N, T) do { \
16   typedef struct Field_##N { char c; T f; } Field_##N; \
17   typedef struct BitField_##N { char c; T f : sizeof (T) * CHAR_BIT; } BitField_##N; \
18   if (sizeof (Field_##N) != sizeof (BitField_##N)) { \
19     fail = 1; printf ("sizeof %s failed\n", #T); \
20   } \
21   if (__alignof__ (Field_##N) != __alignof__ (BitField_##N)) { \
22     fail = 1; printf ("__alignof__ %s failed\n", #T); \
23   } \
24 } while (0)
25 
26 #define CHECK(N, T) do { \
27   CHECK1(N, T); \
28   CHECK1 (s##N, signed T); \
29   CHECK1 (u##N, unsigned T); \
30 } while (0)
31 
main()32 int main ()
33 {
34 
35   CHECK (c, char);
36   CHECK (s, short);
37   CHECK (i, int);
38   CHECK (l, long);
39   CHECK (ll, long long);
40 
41   return fail;
42 }
43